Binder for sewing-machines



J. E. CHALMAN.

BINDER FOR SEWING MACHINES.

APPLICATION mu) SEPT. 23. 1916.

LSWAQW Emma 0m. ILL m1 III IUHN E. @JHEALIIAN, OI @HIGAGU, ILLINOIS,ASSIGNUR T0 "UNION COMPANY, OF CHICAGO, ILLINOIS, A. CORJPORATIUN 0FSJPEGIAL IIIACHIII ILLINQIS.

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Specification of Letters Patent.

Patented tltct. It, I921.

application filed September at, 1916. Serial Ito, mil/76a.

T 0 all whom it may concern.

Be it known that I, Jonn E. CHALMAN, a citizen of the United States,residing at Chicago, in the county of Cook, State of Illinois, haveinvented certainnew and useful Improvements in Binders for Sewing-Machines, of which the following is a description, reference being hadto the accompanying drawing and to the figures of reference markedthereon.

The invention relates to new and useful improvements in binders forsewing machines, and more particularly to a binder which is adapted toinvert the binding strip as it is led to the stitching mechanism, andknown in the art as an English binder.

Binding strips are often previously folded before they are passed intothe binder, and then formed into rolls. These folded strips do not runin uniform widths. An object of the present invention is to provide abinder having means which may be quickly ad- 7 justed so as to adapt thebinder for strips of slightly varying widths.

It is sometimes desirable to stitch the binding strip to the fabric sothat one face of the fabric will be overlapped to a greater IIII tit

extent than the other, and a further object of the invention is toprovide a binder which may be quickly adjusted so that the binding stripas it is inverted may be directed to the fabric being bound in such amanner that one face of the fabric will be overlapped to a greaterextent than the other.

These and other objects will in part'be obvious and will in part behereinafter more fully disclosed.

In the drawings, which show by way of illustration one embodiment of theinvention:-

Figure 1 is a plan view showing a portion of the cloth plate of a sewingmachine having my improved binder attached thereto, and the position ofthe binder relative to the needle of a stitching mechanism;

Fig. 2 is a sectional view through the binder on the line 2-2 of Fig. 1;

Fig. 3 is a perspective view showing the binder with the guidesdetached;

Fig. t is a front view of a portion of the binder with the guidesadjusted for positioning the edges of the binding strip so that thefabric is overlapped to the same extent on both faces thereof;

Fig. 5 is a similar view, but showing the wall 9. The turned-down liguides adjusted so that the binding strip W111 overlap the fabric to agreater extent on the under face thereof;

Fig. 6 is a detail, showing in section a strip of fabric with the foldedbinding strip attached thereto; and

Fig. 7 is a detail showing a small section of the folded binding stripas it is rolled. he improved binder is shown applied in Fig 1 of thedrawings to a sewing machine having a work support 1, the binderindicated at 2 being secured to a bracket 3 by clamping screws 4l4. Theneedle of the sewln machine is indicated at 5, and the direction of feedis indicated by the arrow in this figure. i

til

The improved binder consists of a body portion 6 which has a recess orguiding slot 7 extending from end to end'thereof. The outer face of thebinder is slotted at 8 to facilitate the insertion of the binding stripthrough the binder. At the delivery end of the hinder the recess orguiding slot is shaped so as to form substantially U-shaped guidlngwalls 9 and 10, one ofwhich is located within the other, see Fig. 3. Theextreme edge of the inner guiding wall 9 lies in a plane which issubstantially at forty-five degrees to the line of feed and to thelongitudinal axis of the binder. The bindin strip is led through the,binding slot 7 an is lnverted over the extreme edge of the this guidingfinger .and into threaded openings 17--17 in the body of the binder. Thegulding finger 14: is turned down at its extreme end, as at 18. This end18 of the guiding finger lies in front of the cut-away portion 12 andextends substantially to the of the finger is wide and will cross theincllned end of the guiding wall 9 in all positions of adjustment andserves as a guide for the upper ed e of the bindin strlp.

t the lower si e of the binder there is also a guiding finger 19 whichis secured to the binder by screws 20 passing through ict llllttelongated slots 21 in this guiding finger 19 and into the body of thebinder. This guiding finger has an upwardly turned lip or end 22 whichextends into the cut-away portion indicated at 13 and to a point closeto the under face of the guiding wall 9. This turned-up lip 22 extendsacross the inclined end of the guiding wall 9 .and serves as a guide forthe under edge of the binding strip.

It will be apparent that these guidin fingers 14 and 19 maybeindependently a justed. If they are set so that their ends 18 and 22are in the same vertical plane, then the guiding strip as it leaves thebinder will be guided to the fabric so that the opposite faces of thematerial will be overlapped to the same extent.

In Fig. 6 of the drawings, I have shown a fabric F having my foldedbinding strip indicated at B applied thereto. This binding strip isfolded previously to being passed to the binder, as indicated in Fig. 7of the drawings, where the in-turned edges are shown at Z) and b. Thefolded binding strips vary somewhat as to width. The bindermay bequickly adjusted to accommodate these varying widths by loosening thescrews 15 and 20 and shifting the guide fingers. When it is desired tooverlap one face of the fabric to a greater extent than the other by thebinding strip, then one guiding finger is shifted in or out relative tothe other. In Fig. 5 of the drawings, I have shown the guiding fingersshifted so that the upper edge of the binding strip will overlap thefabric to a less extent than the lower edge of the binding strip.

It is obvious that minor changes in the details of construction and thearrangement of parts may be made without departing from the spirit ofthis invention, as set forth in the appended claims.

Having thus described the invention, what is claimed as new is 2-- 1. Abinder including in combination a body portion having a guiding slot forfolding a binding strip, the delivery end of said binder having inclinededges disposed so as to invert said binding strip as it is led to thestitching mechanism and guiding fingers adjustable longitudinally of thebinder, said guiding fingers having wide ends positioned so as to crossthe inclined edges in all adjusted positions, whereby the binding stripwill be engaged and the respective edges thereof guided at its invertingpoint.

2. A binder including in combination a body portion having a guidingslot for a folded binding strip, said body portion at its delivery endhaving U-shaped guiding walls, the inner wall being cut at an angle tothe longitudinal axis of the binder so that said strip may be invertedas it is led to the stitching mechanism, the upper wall of said binderbeing cut away adjacent the delivery end thereof, and guiding fingerscarried by the binder and adjustable longitudinally thereof, eachguiding finger having its end bent so as to extend to a point adjacentthe inner guiding wall .and serve as a guide for the respective edges ofthe binding strip.

In testimony whereof I aflix my si nature.

JOHN E. GHALi IAN.

WVitness:

S. GEORGE TATE.

